{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,24]],"date-time":"2026-09-24T12:15:59Z","timestamp":1790252159496,"version":"4.1.0"},"reference-count":35,"publisher":"BMJ","issue":"9","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["J Clin Pathol"],"accepted":{"date-parts":[[2017,1,12]]},"published-print":{"date-parts":[[2017,9]]},"abstract":"<jats:sec><jats:title>Aim<\/jats:title><jats:p>Management of ticagrelor-induced bleeding is challenging as platelet transfusion is ineffective. An effective strategy is needed. This study aimed to investigate<jats:italic>in vitro<\/jats:italic>the efficacy of four haemostatic drugs (HDs), namely recombinant activated factor VII (rFVIIa), fibrinogen concentrate (Fib), tranexamic acid (TXA) and factor XIII concentrate (FXIII) to improve the haemostatic capacity in the presence of ticagrelor.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Blood was spiked with ticagrelor then supplemented by either HD or control. Several assays were performed: ADP-induced platelet aggregation measured by impedance aggregometry, light transmission and two global assays, thrombolastography with the platelet mapping device (TEG-PM) and a platelet-dependent thrombin generation assay (TGA).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Ticagrelor inhibited ADP-induced platelet aggregation and decreased the clot strength maximum amplitude (MA) in TEG-PM<jats:sub>ADP<\/jats:sub>. None of the HDs corrected these parameters. However, rFVIIa shortened the coagulation time R using TEG-PM<jats:sub>thrombin<\/jats:sub>and the time to peak prolonged by ticagrelor in TGA. Fib increased MA<jats:sub>thrombin<\/jats:sub>and FXIII decreased LY30. TXA had no effects.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Whereas none of the HDs corrected ticagrelor-induced platelet inhibition, rFVIIa shortened coagulation times, Fib increased clot firmness and FXIII decreased fibrinolysis. Consequently, they may bypass ticagrelor effects by acting on fibrin formation or fibrinolysis. Further studies are needed to confirm these data<jats:italic>in vivo<\/jats:italic>.<\/jats:p><\/jats:sec>","DOI":"10.1136\/jclinpath-2016-204117","type":"journal-article","created":{"date-parts":[[2017,2,4]],"date-time":"2017-02-04T01:55:16Z","timestamp":1486173316000},"page":"733-739","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":17,"title":["Ticagrelor reversal:<i>in vitro<\/i>assessment of four haemostatic agents"],"prefix":"10.1136","volume":"70","author":[{"given":"Leyla","family":"Calmette","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anne-C\u00e9line","family":"Martin","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bernard","family":"Le 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